You'd be amazed at how many new fifth wheels, regardless of the price, still do not have LED tail lights. I had purchased a set of LED tail lights for my former travel trailer (2016 Forest River Vibe) and decided to remove them and install them on the fifth wheel last month when we traded it in. I have a youtube video that shows how bright they are on my old trailer but here is a picture of what they look like on my new fiver.
Here's also the original YouTube video I did so you can see the brightness.
https://youtu.be/9VFfzpz12uQ